Interface‐Engineered Li7La3Zr2O12‐Based Garnet Solid Electrolytes with Suppressed Li‐Dendrite Formation and Enhanced Electrochemical Performance

Zhang, Zhaoshuai; Zhang, Long; Liu, Yanyan; Wang, Hongqiang; Yu, Chuang; Zeng, Hong; Wang, Limin; Xu, Bo

doi:10.1002/cssc.201801756

Cited by 75 publications

(40 citation statements)

References 72 publications

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“…Zhang et al proposed an interfacial architecture engineered by incorporating an ionic liquid into the garnet-based structure to avoid dendrite formation (Figure 13E). 111 In their design, the voids were inside the SE with poor contact with Li, which were the main reason for dendrite growth. They later utilized soft and continuous ionic liquid to fill the voids and connect the grain boundaries.…”

Section: Llmentioning

confidence: 99%

Lithium Dendrite in All-Solid-State Batteries: Growth Mechanisms, Suppression Strategies, and Characterizations

Cao

Sun

et al. 2020

Matter

429

278

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Li metal has been attracting increasing attention as an anode in allsolid-state batteries because of its lowest electrochemical potential and high capacity, although the problems caused by dendritic growth impedes its further application. For a long time, all-solid-state Li metal batteries (ASLBs) are regarded to revive Li metal due to high mechanical strength. However, numerous works revealed that the dendrite issue widely exists in ASLBs, and the mechanism is complex. This review provides a systematic and in-depth understanding of the thermodynamic, kinetic, electrochemical, chemomechnical, structural stability, and characterizations of Li dendrite in ASLBs. First, the mechanisms for dendrite formation and propagation in polymer, ceramic and glass electrolyte were discussed. Subsequently, based on these mechanisms of dendrite growth, we reviewed various strategies for dendrite suppression. Furthermore, advanced characterization techniques were reviewed for better understanding of dendrite in solid-state batteries.

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Section: Llmentioning

confidence: 99%

Lithium Dendrite in All-Solid-State Batteries: Growth Mechanisms, Suppression Strategies, and Characterizations

Cao

Sun

et al. 2020

Matter

429

278

View full text Add to dashboard Cite

show abstract

“…That will transform the Li + conduction mode from point contacts to face‐contacts, leading to uniform ion transportation and high Young modulus for a direct blocking of lithium dendrite. Various interlayers were proposed to inhibit the lithium dendrites, including the soft butylmethylpyrrolidinium‐bis(trifluoromethanesulfonyl)imide (BMP‐TFSI) coating, [ 112 ] flexible PEO‐based capsulation, [ 113 ] chemically stable LiPON layer, [ 108 ] highly conductive Al 2 O 3 or MoS 2 layer, [ 103,104 ] high‐modulus Li 3 PO 4 addition. [ 114 ] Further, it was found that the chemically stable Li/LLZO interfaces may result in more lithium dendrite than that at unstable Li/LATP interfaces, which could be attributed to the terminated dendrite propagation by the generated interphase at the Li/LATP interface.…”

Section: Interfaces In All‐solid‐state Lithium Batteriesmentioning

confidence: 99%

Interface Issues and Challenges in All‐Solid‐State Batteries: Lithium, Sodium, and Beyond

et al. 2020

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Owing to the promise of high safety and energy density, all‐solid‐state batteries are attracting incremental interest as one of the most promising next‐generation energy storage systems. However, their widespread applications are inhibited by many technical challenges, including low‐conductivity electrolytes, dendrite growth, and poor cycle/rate properties. Particularly, the interfacial dynamics between the solid electrolyte and the electrode is considered as a crucial factor in determining solid‐state battery performance. In recent years, intensive research efforts have been devoted to understanding the interfacial behavior and strategies to overcome these challenges for all‐solid‐state batteries. Here, the interfacial principle and engineering in a variety of solid‐state batteries, including solid‐state lithium/sodium batteries and emerging batteries (lithium–sulfur, lithium–air, etc.), are discussed. Specific attention is paid to interface physics (contact and wettability) and interface chemistry (passivation layer, ionic transport, dendrite growth), as well as the strategies to address the above concerns. The purpose here is to outline the current interface issues and challenges, allowing for target‐oriented research for solid‐state electrochemical energy storage. Current trends and future perspectives in interfacial engineering are also presented.

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“…On the other hands, conductivity difference in the grain, grain boundary or the interface (SEI and electrolyte) will lead to the preferential deposition of dendrite. [ 168 ]…”

Section: Lithium Anodesmentioning

confidence: 99%

Lithium/Sulfide All‐Solid‐State Batteries using Sulfide Electrolytes

et al. 2020

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All‐solid‐state lithium batteries (ASSLBs) are considered as the next generation electrochemical energy storage devices because of their high safety and energy density, simple packaging, and wide operable temperature range. The critical component in ASSLBs is the solid‐state electrolyte. Among all solid‐state electrolytes, the sulfide electrolytes have the highest ionic conductivity and favorable interface compatibility with sulfur‐based cathodes. The ionic conductivity of sulfide electrolytes is comparable with or even higher than that of the commercial organic liquid electrolytes. However, several critical challenges for sulfide electrolytes still remain to be solved, including their narrow electrochemical stability window, the unstable interface between the electrolyte and the electrodes, as well as lithium dendrite formation in the electrolytes. Herein, the emerging sulfide electrolytes and preparation methods are reviewed. In particular, the required properties of the sulfide electrolytes, such as the electrochemical stabilities of the electrolytes and the compatible electrode/electrolyte interfaces are highlighted. The opportunities for sulfide‐based ASSLBs are also discussed.

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Interface‐Engineered Li₇La₃Zr₂O₁₂‐Based Garnet Solid Electrolytes with Suppressed Li‐Dendrite Formation and Enhanced Electrochemical Performance

Cited by 75 publications

References 72 publications

Lithium Dendrite in All-Solid-State Batteries: Growth Mechanisms, Suppression Strategies, and Characterizations

Lithium Dendrite in All-Solid-State Batteries: Growth Mechanisms, Suppression Strategies, and Characterizations

Interface Issues and Challenges in All‐Solid‐State Batteries: Lithium, Sodium, and Beyond

Lithium/Sulfide All‐Solid‐State Batteries using Sulfide Electrolytes

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